﻿#region License
//
// Author: Pål Fossmo <pal@fossmo.net>
// Copyright (c) 2008 Pål Fossmo
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#endregion
using System;

namespace TreeFrog.Converter
{
    public class SolutionConverter : IConverter
    {
        private const int guidsToGenerate = 100;

        #region IConverter Members

        public string Convert(string text, string replaceText)
        {
            if (string.IsNullOrEmpty(text))
            {
                throw new NullReferenceException("No value in both or one of input strings.");
            }
            var guid = new string[guidsToGenerate];
            for (int i = 1; i < guidsToGenerate; i++)
            {
                string temp = text;
                guid[i] = Guid.NewGuid().ToString();
                string replaceString = string.Format("<!GUID{0}!>", i);
                text = text.Replace(replaceString, Guid.NewGuid().ToString().ToUpper());
                if (text == temp) break;
            }

            return text;
        }

        #endregion

        public string Convert(string text)
        {
            return Convert(text, "");
        }
    }
}